Turbo-coded ARQ scheme for a CDMA packet radio system

Author

Kim, Jin Young

Author_Institution

Sch. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea

fYear

2003

fDate

15-17 Oct. 2003

Firstpage

123

Lastpage

125

Abstract

Summary form only given. A turbo-coded ARQ scheme is analyzed and simulated for a CDMA packet radio system. The performance is evaluated in terms of packet error probability. The wireless channel is modeled as a slow Rayleigh fading channel. The simulation results are presented with the following varying parameters: (1) the number of iterations used in the decoding process, (2) interleaver length employed in the turbo encoder, and (3) standard deviation of shadowing to evaluate the effect of channel characteristics on performance. Finally, the comparative results are shown for the optimal and suboptimal approaches used in the turbo decoding process. For turbo decoding algorithms, the MAP, the Max-Log-MAP, and the SOVA algorithms are taken into account.

Keywords

Rayleigh channels; automatic repeat request; channel coding; code division multiple access; error statistics; interleaved codes; iterative decoding; maximum likelihood decoding; optimisation; packet radio networks; turbo codes; CDMA; MAP algorithm; Max-Log-MAP algorithm; SOVA algorithm; interleaver length; iterative decoding; optimal decoding; packet error probability; packet radio system; performance; shadowing standard deviation; slow Rayleigh fading channel; suboptimal decoding; turbo decoding algorithms; turbo-coded ARQ; Automatic repeat request; Channel coding; Convolutional codes; Delay; Error correction; Error correction codes; Iterative decoding; Multiaccess communication; Packet radio networks; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Technology, 2003. IEEE Topical Conference on

Print_ISBN

0-7803-8196-3

Type

conf

DOI

10.1109/WCT.2003.1321453

Filename

1321453